Skip to main content

SIDE BEND TEST

SIDE BEND TEST

Object: To determine the soundness of the weld metal and HAZ in a cross section. This may be preferred to the transverse bend test on thick materials. It is also used on processes or procedures expecting lack of fusion (e.g. thick plate using MIG).

Method: The testing method is the same as that used for transverse bends except the cap and root are not ground flush, to allow testing across the complete weld.

Report Results:
  1. Width and thickness of specimen. 
  2. Angle of bend.
  3. Diameter of former.
  4. Appearance of joint after bending e.g. type and location of flaws.



Labels:

Popular posts from this blog

Rockwell Hardness Test

Rockwell Hardness Test The Rockwell hardness test method consists of indenting the test material with a diamond cone or hardened steel ball indenter. The indenter is forced into the test material under a preliminary minor load FO usually I 0 kgf. When equilibrium has been reached, an indicating device, which follows the movements of the indenter and so responds to changes in depth of penetration of the indenter is set to a datum position. While the preliminary minor load is still applied an additional major load is applied with resulting increase in penetration . When equilibrium has again been reach, the additional major load is removed but the preliminary minor load is still maintained. Removal of the additional major load allows a partial recovery, so reducing the depth of penetration. The permanent increase in depth of penetration, resulting from the application and removal of the additional major load is used to calculate the Rockwell hardness number.        ...
Read more

Part -4 Most commonly asked Mechanical Interview Questions

Most commonly asked Mechanical Interview Questions with answer 1.          What is Difference between stamina and strength? Ans.     Strength is capability over a short length of time and Stamina is the ability to keep going continuously. 2.          What is Hydro-static System? Ans.     Hydrostatics is the study of fluid bodies that are At rest Moving su ffi cient slowly so there is no relative motion between adjacent parts of the body For hydrostatic situations There are no shear stresses There are only pressure forces that act perpendicular to any surface. It’s a closed loop hydraulic systems. It comprises of motor and pump. Here pump supplies energy to motor and motor gives return energy to pump supply. 3.          What is Cotter joint? Ans.      A cotter j...
Read more

MAGNETIC PARTICLE EXAMINATION (M.P.I.)

MAGNETIC PARTICLE EXAMINATION (M.P.I.) INTRODUCTION This method is used for detecting cracks and other discontinuities open to surface or sub surface in ferromagnetic materials. Fine magnetic particles are applied to the surface of a part which has been suitably magnetized. The particles are attracted to regions of magnetic non-uniformity associated with defects and discontinuities, thus producing indication which are observed visually. PRINCIPLE When a piece of metal is placed in a magnetic field and the lines of magnetic flux get intersected by a discontinuity such as a crack or slag inclusion in a casting, magnetic poles are induced on either side of the discontinuity. The discontinuity causes an abrupt change in the path of magnetic flux flowing through the casting normal to the discontinuity, resulting a local flux leakage field and interfering with the magnetic lines of force. This local flux disturbance can be detected by its affect upon magnetic particles that collect o...
Read more